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Class Information
Number: 81/61
Name: Tools > Wrench, screwdriver, or driver therefor > Handle clutched to head > One-way detent drive, e.g., ratchet > Pivoted pawl
Description: A pawl pivoted to the driving device engages the ratchet-teeth of the head.










Sub-classes under this class:

Class Number Class Name Patents
81/62 Reversing 211


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8661945 Clamping ratchet wrench Mar. 4, 2014
8650991 Ratchet wrench Feb. 18, 2014
8640573 Ratchet wrench Feb. 4, 2014
8616095 Ratchet hand tool without use of switching member Dec. 31, 2013
8596170 Single direction mechanism of a ratchet wrench Dec. 3, 2013
8567287 Reversible open-ended ratchet wrench Oct. 29, 2013
8555752 Ratchet wrench Oct. 15, 2013
8555751 Adjustable ratchet wrench Oct. 15, 2013
8516928 Ratchet wrench preventing jam of pawls Aug. 27, 2013
8511206 Ratchet wrench with rotatable driving head Aug. 20, 2013
8485069 Wrench with a ratchet device Jul. 16, 2013
8474351 Ratchet wrench Jul. 2, 2013
8464616 Tools with driving rods Jun. 18, 2013
8413550 Dustproof device for ratchet wrench Apr. 9, 2013
8413549 Revolving screwdriver with ratchet structure Apr. 9, 2013
8261637 Redirection structure of ratchet wrench Sep. 11, 2012
8245602 Ratchet wrench Aug. 21, 2012
7895920 Open end ratchet wrench Mar. 1, 2011
7430945 Ratcheting torque wrench Oct. 7, 2008
7421772 Ratcheting driver with pivoting pawls and method of arranging same Sep. 9, 2008
7380481 Pass through socket and ratchet wrench combination Jun. 3, 2008
7353735 Ratchet wrench Apr. 8, 2008
7287448 Reversible high-torque screwdriver Oct. 30, 2007
7234372 Reversible ratcheting tool with a smaller head and improved driving torque Jun. 26, 2007
7181997 Ratchet screwdriver and method of making same Feb. 27, 2007
7146883 Wrench driven directly to change its direction of operation Dec. 12, 2006
7137319 Ratchet wrench Nov. 21, 2006
7124664 Ratchet wrench Oct. 24, 2006
7121170 Ratchet wrench operated conveniently Oct. 17, 2006
7121167 Flat head reversible power ratchets Oct. 17, 2006
7100477 Oneway ratchet wrench Sep. 5, 2006
7096763 Direction control device of ratchet spanner Aug. 29, 2006
7093520 Gear wrench allowing easy force application Aug. 22, 2006
7066056 Ratchet tool Jun. 27, 2006
7059218 Driving member securing device for hand tools Jun. 13, 2006
7055409 Socket wrench for ratchet wheel sockets Jun. 6, 2006
7040197 Opener providing large arm of force May. 9, 2006
7036400 Wrench May. 2, 2006
7013761 Wrench Mar. 21, 2006
6981435 Ratchet wrench having a sealing structure Jan. 3, 2006
6978700 Wrench assembly Dec. 27, 2005
6971284 Compact ratchet wrench with adjustable jaws Dec. 6, 2005
6948406 Ratchet wrench having positioning effect Sep. 27, 2005
6907803 Single-direction operation type ratchet wrench structure Jun. 21, 2005
6868758 Joint for connecting wrench with socket Mar. 22, 2005
6792830 Unidirectional ratchet wrench Sep. 21, 2004
6769329 Releasable socket ratchet wrench Aug. 3, 2004
6766716 Adapter for a ratchet wrench for engaging with socket or other tools of the like Jul. 27, 2004
6752048 Quick rotation wrench having an angle adjustment structure Jun. 22, 2004
6748824 Ratchet wrench having socket adapter securing device Jun. 15, 2004

1 2 3










 
 
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